Exercise 39.2: Present: simple/ continuous/ perfect

Complete the sentence using a suitable verb in the present simple, present continuous or present perfect form from the following choices below.

Example: Oh no! I ____ my wallet.
Answer: Oh no! I have lost my wallet.

1. He ____ stamps ever since he was a small boy.

2. Be quiet and listen! The teacher ____.

3. Sorry, I can't talk now. I ____ dinner.

4. The phone is ringing. Can somebody ____ it?

5. She ____ on the phone for half an hour now.

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